At The New Yorker, John Cassidy writes on the significance of Hillary Clinton’s victory over Bernie Sanders in South Carolina. Clinton replicated Obama’s winning strategy in 2008 and 2012, concentrating on core Democratic voters, including the black vote. “Even before she had made her candidacy official, Clinton was cultivating black leaders, visiting black churches, and embracing issues that matter to black voters,” Cassidy writes. “In her victory speech, Clinton saluted five mothers—including the mothers of Trayvon Martin and Eric Garner—who had accompanied her around South Carolina in recent days. She also appeared to invoke Obama’s legacy, saying, ‘When we stand together there is no barrier too big to break.'”